however的用法agree的用法ashamed, shameful的用法區別before和ago巧記apologize to和apologize for的用法區別ago 與 before的用法區別onto 與 on to 的用法區別nevertheless的用法find 的用法與搭配check,examine,experiment,test的用法區別most 與 most of 的區別favorite,favorable,favored的區別make sb do sth 和make sb done 的區別interest, interested, interesting用法介紹afford的用法fool與foolish的用法區別asleep的用法習慣damage的用法while和when的區別even though和even if的用法與區別